255203017 has 2 divisors, whose sum is σ = 255203018. Its totient is φ = 255203016.

The previous prime is 255202999. The next prime is 255203021. The reversal of 255203017 is 710302552.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 236575161 + 18627856 = 15381^2 + 4316^2 .

It is a cyclic number.

It is not a de Polignac number, because 255203017 - 2¹⁹ = 254678729 is a prime.

It is a super-3 number, since 3×255203017³ (a number of 26 digits) contains 333 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 255202982 and 255203000.

It is not a weakly prime, because it can be changed into another prime (255203717) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 127601508 + 127601509.

It is an arithmetic number, because the mean of its divisors is an integer number (127601509).

Almost surely, 2^255203017 is an apocalyptic number.

It is an amenable number.

255203017 is a deficient number, since it is larger than the sum of its proper divisors (1).

255203017 is an equidigital number, since it uses as much as digits as its factorization.

255203017 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 2100, while the sum is 25.

The square root of 255203017 is about 15975.0748668042. The cubic root of 255203017 is about 634.3008130771.

Adding to 255203017 its reverse (710302552), we get a palindrome (965505569).

The spelling of 255203017 in words is "two hundred fifty-five million, two hundred three thousand, seventeen".